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破解 MySQL5.7 数据库的 root 登录密码

忘记 root 登录密码
  [root@MySQL1 ~]# mysql -uroot -p1231234  mysql: [Warning] Using a password on the command line interface can be insecure.  ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)  
在 /etc/my.cnf 配置文件中添加 skip-grant-tables 绕开 MySQL5.7 数据库密码验证
  [root@MySQL1 ~]# echo skip-grant-tables >> /etc/my.cnf  [root@MySQL1 ~]# /etc/init.d/mysqld restart  Shutting down MySQL.. SUCCESS!  Starting MySQL. SUCCESS!  
直接使用 mysql 命令登录 MySQL5.7 数据库并修改 root 登录密码
  [root@MySQL1 ~]# mysql  Welcome to the MySQL monitor.  Commands end with ; or g.  Your MySQL connection id is 3  Server version: 5.7.19-log Source distribution    Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.    Oracle is a registered trademark of Oracle Corporation and/or its  affiliates. Other names may be trademarks of their respective  owners.    Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.    mysql> ALTER  USER   'root'@'localhost'   IDENTIFIED BY  'password';  ERROR 1290 (HY000): The MySQL server is running with the --skip-grant-tables option so it cannot execute this statement  mysql> flush privileges;  Query OK, 0 rows affected (0.00 sec)    mysql> ALTER  USER   'root'@'localhost'   IDENTIFIED BY  'password';  Query OK, 0 rows affected (0.00 sec)    mysql> quit  Bye    

注意:如果在执行该步骤的时候出现 ERROR 1290 (HY000): The MySQL server is running with the –skip-grant-tables option so it cannot execute this statement 错误。则执行下 flush privileges; 命令,再执行该命令即可。

使用新密码 password 登录 MySQL5.7 数据库
  [root@MySQL1 ~]# mysql -uroot -ppassword  mysql: [Warning] Using a password on the command line interface can be insecure.  Welcome to the MySQL monitor.  Commands end with ; or g.  Your MySQL connection id is 4  Server version: 5.7.19-log Source distribution    Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.    Oracle is a registered trademark of Oracle Corporation and/or its  affiliates. Other names may be trademarks of their respective  owners.    Type 'help;' or 'h' for help. Type 'c' to clear the current input statement.    mysql> exit  Bye  
使用其他密码不能登录 MySQL5.7 数据库
  [root@MySQL1 ~]# mysql -uroot -ppasswordd  mysql: [Warning] Using a password on the command line interface can be insecure.  ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)  
优化
删掉 /etc/my.cnf 里的 skip-grant-tables
  [root@MySQL1 ~]# sed -i -e '/skip-grant-tables/d' /etc/my.cnf  
重启数据库
  [root@MySQL1 ~]# /etc/init.d/mysqld restart  
总结

以上就是破解 MySQL5.7 数据库的 root 登录密码的方法,希望能给大家带来帮助。

本文原创地址:https://www.linuxprobe.com/mysql5-7-root-password.html编辑:public,审核员:逄增宝

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